Petersham Nurseries is really a delightful place to visit. It has a wonderful array of plants and gardening equipment ... and best of all a cafe and tea house with sumptuous cakes and pastries ... and a wonderful restaurant too. The restaurant is so busy at lunchtime that it must be booked at least a month in advance, but is said to be one of the best places to eat in this area of South London, and the chef (Skye Gyngell), is praised by all and sundry. Do pay a visit if you are in the area. Take your wellies with you!